【摘要】：為了優(yōu)化激光焊接FeCo-V合金拉伸強(qiáng)度,建立數(shù)學(xué)關(guān)系,結(jié)合工藝參數(shù)如熒光燈電流、焊接速度、脈沖時(shí)間和位置,以預(yù)測(cè)激光束焊FeCo-V薄片拉伸強(qiáng)度。建立程序以提高焊接強(qiáng)度和增大產(chǎn)率。結(jié)果表明,脈沖時(shí)間和焊接速度對(duì)拉伸強(qiáng)度影響很大,焊接接頭的拉伸強(qiáng)度隨脈沖時(shí)間的延長(zhǎng)而增大,并在2.25 ms時(shí)達(dá)到最大。而且,接頭的拉伸強(qiáng)度隨著焊接速度的減小而增大,并在125 mm/min時(shí)達(dá)到最大。脈沖時(shí)間的延長(zhǎng)和焊接速度的減小導(dǎo)致有效峰能量密度減小,因此更耐焊。在較高的脈沖時(shí)間和較低的焊接速度時(shí),因?yàn)樵谌酆蠀^(qū)形成了凝固微裂紋而使得焊接接頭的拉伸強(qiáng)度增大。
[Abstract]:In order to optimize the tensile strength of laser welded FeCo-V alloy and establish a mathematical relationship, the tensile strength of FeCo-V sheet welded by laser beam can be predicted by combining the process parameters such as fluorescent lamp current, welding speed, pulse time and position. Establish procedures to increase welding strength and productivity. The results show that pulse time and welding speed have great influence on tensile strength. The tensile strength of welded joint increases with the extension of pulse time and reaches its maximum at 2.25 ms. Moreover, the tensile strength of the joint increases with the decrease of welding speed and reaches its maximum at 125 mm/min. The prolongation of pulse time and the decrease of welding speed lead to the decrease of effective peak energy density, so it is more resistant to welding. At higher pulse time and lower welding speed, the tensile strength of welded joints increases because solidified microcracks are formed in the fusion zone.
【作者單位】： Department
【分類號(hào)】：TG456.7

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